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From "Todd Lipcon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2430) The number of failed or low-resource volumes the NN can tolerate should be configurable
Date Wed, 19 Oct 2011 21:31:17 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13131020#comment-13131020
] 

Todd Lipcon commented on HDFS-2430:
-----------------------------------

I think option #1 is better - agree #2 is more flexible but I can't think of any real use
cases.

The other thing that needs to be considered in this design, though, is that we need to think
separately about edits storage vs name directories. Edits may be stored in other implementations
in the not-so-distant future (eg bookkeeper). So it's not just the name dirs, but also the
edits managers which need to have such a configuration.
                
> The number of failed or low-resource volumes the NN can tolerate should be configurable
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-2430
>                 URL: https://issues.apache.org/jira/browse/HDFS-2430
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: name-node
>    Affects Versions: 0.24.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>
> Currently the number of failed or low-resource volumes the NN can tolerate is effectively
hard-coded at 1. It would be nice if this were configurable.

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